Black forged carbon case with black rubber strap and fixed black forged carbon bezel. Black analog dial features luminous hands, stick hour markers, minute outer rim markers, and luminescent markers for night readability. Equipped with Audemars Piguet Calibre 2897 automatic movement including 34 Jewels, operating at 21600 vph frequency composed of 335 parts, offering a 65-hour power reserve. Includes skeleton case back and screw-down crown. Sapphire crystal offers scratch resistance. Chronograph function with tachymeter capability via the fixed bezel. Three sub-dials display: 60-second counter, 30-minute counter, and tourbillon information. Tourbillon complication is present. Watch water resistant up to 100 meters / 330 feet. Item Variations Available: 26550AU OO A002CA 01, 26550AU-OO-A002CA-01, 26550AUOOA002CA01